Modeling of enzymatic reaction in an airlift reactor using an axial dispersion model
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Ivan Sikula
und
Jozef Markoš
Abstract
This work was focused on modeling of biochemical processes in a 40-L internal-loop airlift reactor. Due to different mixing in the specific zones of the reactor four main sections, bottom, riser, separator and downcomer, were recognized. Each zone was modeled by an adequate mixing model: bottom and separator sections by the model of ideally-stirred reactor; riser and downcomer sections by the model of plug-flow reactor with axial dispersion. In the model, the effects of mass transfer, hydrodynamics, and reaction kinetics were taken into account. The model of the reactor was experimentally verified by the aerobic enzymatic oxidation of glucose to gluconic acid. Simulations are in good agreement with experimental data.
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© 2008 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Photocatalytic reduction of CO2 over TiO2 based catalysts
- Modeling of enzymatic reaction in an airlift reactor using an axial dispersion model
- Hydrolysis of titanium sulphate compounds
- Mathematical modelling of selected characterisation procedures for oil fractions
- High gravity batch and continuous processes for beer production: Evaluation of fermentation performance and beer quality
- Liquid-liquid equilibria of butyric acid for solvents containing a phosphonium ionic liquid
- HAZOP study of a fixed bed reactor for MTBE synthesis using a dynamic approach
- Influence of the reactive distillation column configuration on its performance: A computational study
- Reactive distillation — experimental data for propyl propionate synthesis
- Mixing time of a non-Newtonian liquid in an unbaffled agitated vessel with an eccentric propeller
- Heat transfer coefficient and pressure drop during refrigerant R-134a condensation in a plate heat exchanger
- Pore structure of pyrolyzed scrap tires
- Distribution of local heat transfer coefficient values in the wall region of an agitated vessel
- Chemical pretreatment of feed water for membrane distillation
- Selective methane oxidation to formaldehyde using polymorphic T-, M-, and H-forms of niobium(V) oxide as catalysts
- Validation of the Tessier scheme for speciation of metals in soil using the Bland and Altman test
- Production of potassium sulfate from potassium hydrosulfate solutions using alcohols
